On 7/2/12 10:56 AM, Linda Dunbar wrote:
But not all data centers will use L3VPN. Many data centers don't have any end systems which are part of any L3VPN; Many data centers only allow IPSec tunnels terminated at their gateways; Some multi-tenant data centers have to use L2 among VMs due to their tenant's requirement.
I keep drafting email and then throwing it out rather than sending it, because I think this may be the earliest I've seen a working group go off the rails, and I have to say I've been quite confused by some of the discussion around scoping. Part of it is, I think, tied to a lack of clarity in IP networks about which layer is which (and that's fine - layering for its own sake doesn't buy you much), but at any rate I don't think the work at hand is that NVO3 is looking at every single network virtualization technology that could possibly be used in a data center. The charter says this: "NVO3 will consider approaches to multi-tenancy that reside at the network layer rather than using traditional isolation mechanisms that rely on the underlying layer 2 technology (e.g., VLANs)" which suggests to me that while layer 2 technologies may (and, in fact, are) used in data centers that doesn't mean that solving problems around layer 2 technologies is something that this group has been chartered to work on. I like that this draft has a specific focus on overlay networks. It's clear, unambiguous, and doesn't suffer from scope creep. I would very much like to see it adopted by the working group. Melinda _______________________________________________ nvo3 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nvo3
